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Optimal control models and elicitation of attitudes towards climate damages

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Author Info

  • Jean-Charles Hourcade

    ()
    (CIRED - Centre International de Recherche sur l'Environnement et le Développement - CIRAD : UMR56 - CNRS : UMR8568 - Ecole des Hautes Etudes en Sciences Sociales (EHESS) - Ecole des Ponts ParisTech - Ecole Nationale du Génie Rural des Eaux et Forêts)

  • Philippe Ambrosi

    ()
    (CIRED - Centre International de Recherche sur l'Environnement et le Développement - CIRAD : UMR56 - CNRS : UMR8568 - Ecole des Hautes Etudes en Sciences Sociales (EHESS) - Ecole des Ponts ParisTech - Ecole Nationale du Génie Rural des Eaux et Forêts)

  • Stéphane Hallegatte

    ()
    (CIRED - Centre International de Recherche sur l'Environnement et le Développement - CIRAD : UMR56 - CNRS : UMR8568 - Ecole des Hautes Etudes en Sciences Sociales (EHESS) - Ecole des Ponts ParisTech - Ecole Nationale du Génie Rural des Eaux et Forêts)

  • Franck Lecocq

    (World Bank - Development Economics Research Group - World Bank)

  • Patrice Dumas

    (CIRED - Centre International de Recherche sur l'Environnement et le Développement - CIRAD : UMR56 - CNRS : UMR8568 - Ecole des Hautes Etudes en Sciences Sociales (EHESS) - Ecole des Ponts ParisTech - Ecole Nationale du Génie Rural des Eaux et Forêts)

  • Minh Ha-Duong

    (CIRED - Centre International de Recherche sur l'Environnement et le Développement - CIRAD : UMR56 - CNRS : UMR8568 - Ecole des Hautes Etudes en Sciences Sociales (EHESS) - Ecole des Ponts ParisTech - Ecole Nationale du Génie Rural des Eaux et Forêts)

Abstract

This paper examines the consequences of various attitudes towards climate damages through a family of stochastic optimal control models (RESPONSE): cost-efficiency for a given temperature ceiling; cost-benefit analysis with a "pure preference for current climate regime" and full cost-benefit analysis. The choice of a given proxy of climate change risks is actually more than a technical option. It is essentially motivated by the degree of distrust regarding the legitimacy of an assessment of climate damages and the possibility of providing in due time reliable and non controversial estimates. Our results demonstrate that a) for early decades abatement, the difference between various decision-making frameworks appears to matter less than the difference between stochastic and non stochastic approach given the cascade of uncertainty from emissions to damages; b) in a stochastic approach, the possibility of non-catastrophic singularities in the damage function is sufficient to significantly increase earlier optimal abatements; c) a window of opportunity for action exists up to 2040: abatements further delayed may induce significant regret in case of bad news about climate response or singularities in damages.

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File URL: http://halshs.archives-ouvertes.fr/docs/00/00/09/66/PDF/EMA-Ambrosi-Jch-Dumas-etal.pdf
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Bibliographic Info

Paper provided by HAL in its series Post-Print with number halshs-00000966.

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Date of creation: 2003
Date of revision:
Publication status: Published, Environmental Modeling and Assessment, 2003, 8, 3, 133-147
Handle: RePEc:hal:journl:halshs-00000966

Note: View the original document on HAL open archive server: http://halshs.archives-ouvertes.fr/halshs-00000966/en/
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Web page: http://hal.archives-ouvertes.fr/

Related research

Keywords: Cost-efficiency; Cost-benefit; Climate sensitivity; Climate change damages; Uncertainty; Optimal climate policy; Decision making frameworks;

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